LibWeb+LibWebView+WebContent+Ladybird: Add IPC call that opens new tab

Author: https://github.com/kalenikaliaksandr
Commit: a9f8d4eada
Pull-request: https://github.com/SerenityOS/serenity/pull/17855
Reviewed-by: https://github.com/linusg
Reviewed-by: https://github.com/trflynn89 ✅

Userland/Services/WebContent/PageHost.cpp

@@ -377,6 +377,11 @@ void PageHost::page_did_update_resource_count(i32 count_waiting)
     m_client.async_did_update_resource_count(count_waiting);
 }
 
+String PageHost::page_did_request_new_tab()
+{
+    return m_client.did_request_new_tab();
+}
+
 void PageHost::page_did_close_browsing_context(Web::HTML::BrowsingContext const&)
 {
     m_client.async_did_close_browsing_context();